Introduction. Cardiovascular diseases still remain at the forefront of society's most important health problem and are one of the leading causes of death.Purpose of research. The aim of this study is to assess the degree of coping with stress in a group of patients treated for unstable angina.Material and methods. The research was conducted on 01.09.2019 - 01.03.2020. The size of the study group was 100 people, 45% of whom were women, 55% were men. People with diagnosed unstable angina took part in the study. The following research tools were used in this work to gather the necessary information: • Self-study report - contains 12 questions in the area of sociodemographic information, current disease and available support. • Mini-COPE - Inventory for Measuring Coping With Stress. • PSS-10 - Perceived Stress Scale. The above research tools made it possible to collect information on the sociodemographic data of the respondents, the degree of coping with stress and the scale of perceived stress.Conclusions. Younger people more often than older people focused on actively coping with stress. People in relationships coped with stress to a greater extent than single people and focused on development. Patients who remain professionally active cope better with a stressful situation than those on disability or retirement. People after surgical procedures were more planning-oriented than those treated with pharmacological treatment. The support of family and friends has a positive effect on coping with stress in patients with unstable angina.

We constructed the ambulatory monitoring, 4-channel recorder enabling simultaneous collection of ECG and ICG signals from a built-in miniaturised ICG device on 20MB PCMCIA Flash Memory Card. The system allows for off-line, beat-to-beat automatic evaluation of cardiac output, stroke volume, ejection time, preejection period and heart rate. The system was checked in more than 40 healthy subjects in ambulatory conditions and in 10 patients showing the hemodynamic effects of arrhythmia. The patterns of ICG signal during atrial fibrillation, supraventricular and ventricular ectopy were recorded. The device could record signals with acceptable qualify during sleep time, static and moderate dynamic exercise on cycloergonteter, tilt test and Valsalva manoeuvre. The system has been continuously testing and improving.

Introduction. According to data from 2017 provided by the National Health Fund, nearly 30,000 pacemakers and 10,000 cardioverter-defibrillators have been implanted in Poland so far. Pacemaker implantation alone results in an improvement in the quality of life in approximately 35% of patients. Interest in the subject of quality of life can be seen in researchers from various fields since the middle of the last century. Despite the passing years, the demand for comprehensive research on the quality of life in the group of patients with an implanted pacemaker does not decrease. Purpose of research. The aim of the study was to assess the quality of life of patients after implantation of a pacemaker. 93 Material and methods. The study included 100 patients after implantation of a pacemaker, treated at the SPSK 4 cardiology ward and outpatient clinic in Lublin from January to May 2020. The diagnostic survey method was used, and the WHOQOL-BREF standardized tool was used to collect the research material. The obtained results were compiled in a statistical analysis. Results. It was shown that 64% of patients with implanted pacemakers rated their quality of life as at least good. The result of the self-assessment of health was lower, 41% of respondents scored above the average criterion. The highest results were observed in the domain of the functioning environment, and the lowest in the physical domain. Conclusions. The quality of life of most subjects with an implanted pacemaker is at least at a good level. Self-assessment of patients' health is lower than the overall assessment of the quality of life. In patients with an implanted pacemaker, the quality of life was rated the lowest in the physical domain, and the highest in the aspect of the functioning environment.

IntroductionA Latin adage says that "good health is better than the greatest wealth." [3] It has been known for a long time that the heart is the most important organ that works continuously throughout life to properly nourish all tissues, and thus determines the proper functioning and health of the entire human body. Meanwhile, despite the development of science, the advancement of diagnosis and treatment techniques, cardiovascular diseases, often leading to a heart attack, are the leading cause of death in most developed countries. [4]. Estimates of the National Centre For Heart Statistic say that 143 million people worldwide suffer from ischemic heart disease. [6]. A past of myocardial infarction, despite the high mortality, also affects the quality of life of patients. According to the definition of the World Health Organization (WHO), quality of life is an individual way in which an individual perceives his or her position in life in relation to the culture and value system in which he or she functions, as well as in the context of expectations, tasks and standards set by environmental determinants. [5]. The medical approach to the quality of life consists in identifying the patient's problems related to his physical, mental and social activity resulting from the disease and the treatment used, as well as describing his views on health and subjective well-being.

Admission. Parenteral nutrition (parenteral) is the supply of all essential nutrients -proteins, carbohydrates, fats, electrolytes, vitamins, trace elements and water intravenously. Parenteral nutrition is a generally available method of nutritional treatment used when the supply of food through the gastrointestinal tract is impossible, insufficient or contraindicated. Complete parenteral nutrition should be replaced as soon as possible with feeding to the gastrointestinal tract. Chronic diseases in children are often complicated by serious nutritional deficiencies.